Welcome to the Scooter Vista range of Lambretta Carburettor Parts for LI, SX, TV, DL & GP models.
Whether you're rebuilding an original Lambretta carburettor, replacing worn components, servicing a standard engine or upgrading your fuel system, we stock a range of Lambretta carburettor parts, jets, slides, manifolds, filters, banjos, gaskets and carburettor refurbishment components.
Our range covers popular classic Lambretta models including:
- Lambretta LI125
- Lambretta LI150
- Lambretta TV175
- Lambretta TV200
- Lambretta SX150
- Lambretta SX200
- Lambretta DL125
- Lambretta DL150
- Lambretta DL200
- Lambretta GP125
- Lambretta GP150
- Lambretta GP200
We stock components for Dell'Orto and SH-type Lambretta carburettors, including parts suitable for Scootopia replacement carburettors.
From a simple carburettor gasket or clamp to a complete carburettor refurbishment kit or replacement SH carburettor, our range is designed to help keep your classic Lambretta's fuel system working correctly.
Lambretta Carburettors
The carburettor controls the mixture of fuel and air supplied to the two-stroke engine.
A correctly functioning carburettor is essential for:
- Starting
- Idling
- Acceleration
- Throttle response
- Fuel consumption
- Engine performance
Over many years, Lambretta carburettors can suffer from worn components, blocked passages, damaged gaskets and seals, corrosion or incorrect jetting.
A thorough carburettor service can often make a significant difference to how an older Lambretta runs.
Lambretta SH1/18 Carburettor Parts
The SH1/18 carburettor is a common specification found on classic Lambretta engines.
Scooter Vista stocks replacement and service components for suitable SH1/18 carburettors, including:
- Carburettor gaskets
- Jets
- Slides
- Banjo components
- Float bowl components
- Carburettor clamps
- Top covers
- Sleeves
- Filters
- Refurbishment components
Always check the carburettor body and existing component numbers before ordering replacement parts.
Lambretta SH1/20 Carburettor Parts
The SH1/20 carburettor is another popular Lambretta specification and is also available as a replacement carburettor.
Scootopia produces an SH1/20 carburettor suitable for Lambretta Series 1, Series 2, Series 3 and DL/GP applications. The supplied carburettor is based on the TV175, TV200, SX150, SX200 and GP125 specification and is supplied with a selection of jets and slides.
A 20mm inlet manifold is recommended for this particular carburettor.
If you're replacing an original carburettor, always check the manifold, air filter, throttle cable and choke arrangement before ordering.
Lambretta SH1/22 Carburettor Parts
The SH1/22 carburettor is commonly associated with larger or performance-oriented Lambretta applications.
When changing carburettor size, remember that the carburettor should be considered alongside the rest of the engine specification.
Cylinder capacity, exhaust, air filter, ignition and jetting can all affect the correct carburettor setup.
Scooter Vista stocks service and replacement components for suitable SH carburettor applications.
Lambretta Carburettor Refurbishment Kits
If your Lambretta carburettor is old but otherwise serviceable, a carburettor refurbishment kit can be an economical way of bringing it back into good working order.
A refurbishment kit can replace components such as:
- Gaskets
- O-rings
- Seals
- Banjo gaskets
- Float bowl gaskets
- Jet plug gaskets
- Other small service components
Scootopia's SH carburettor refurbishment kit is designed for Dell'Orto and Scootopia SH18, SH20 and SH22 carburettors and uses ethanol-resistant components.
This is particularly useful when servicing older Lambrettas that have been exposed to modern petrol containing ethanol.
Ethanol Resistant Lambretta Carburettor Parts
Modern petrol can be harder on older rubber and gasket materials than the fuels originally available when classic Lambrettas were produced.
Using ethanol-resistant carburettor seals and gaskets can therefore be worthwhile when rebuilding an older carburettor.
Scooter Vista stocks ethanol-resistant carburettor refurbishment components for suitable Lambretta SH carburettors.
If you're rebuilding a carburettor, replacing old seals rather than reusing decades-old rubber components is good practice.
Lambretta Carburettor Jets
Correct jetting is critical to the operation of a two-stroke Lambretta engine.
Carburettor jets control the amount of fuel supplied through different parts of the throttle range.
Depending on the carburettor, components can include:
- Main jet
- Pilot jet
- Starter/choke jet
- Atomiser
- Needle
- Jet holder
- Jet plug
The correct jetting depends on the complete engine specification.
Factors that can affect jetting include:
- Cylinder capacity
- Cylinder kit
- Carburettor size
- Exhaust
- Air filter
- Airbox
- Ignition
- Altitude
- Temperature
- Fuel
Never assume that the jetting from one Lambretta engine will be correct for another.
Lambretta Main Jets
The main jet has a significant effect on fuel delivery at larger throttle openings.
When tuning a Lambretta, main jet selection should be approached carefully.
A jet that is too small can result in a lean mixture, while an excessively large jet can make the engine run rich.
Always tune carefully and pay attention to engine behaviour rather than simply copying another scooter's jetting.
Lambretta Pilot Jets
The pilot jet contributes to fuel delivery at low throttle openings and during the transition away from idle.
A blocked or incorrect pilot jet can cause:
- Poor starting
- Poor idle
- Hesitation
- Poor low-speed running
- Difficulty adjusting the mixture
If an old Lambretta has been standing for a long time, the pilot circuit should be inspected carefully during a carburettor rebuild.
Lambretta Starter & Choke Jets
The starter circuit provides additional fuel when starting a cold engine.
Problems with the starter circuit can cause:
- Difficult cold starting
- Excessive richness
- Poor running after starting
- Fuel consumption issues
Inspect the starter jet and associated components whenever the carburettor is dismantled.
Lambretta Carburettor Slides
The carburettor slide controls airflow through the carburettor and plays an important role in throttle response and mixture characteristics.
Different slide profiles can alter how the engine responds through the throttle range.
Scootopia supplies replacement SH carburettor slides, including 5914 and 7895 specifications for suitable applications.
Always match the slide to the carburettor and engine setup.
Lambretta Carburettor Atomisers
The atomiser forms part of the carburettor's fuel metering system.
It works with the needle to control fuel delivery through the mid-throttle range.
If you're rebuilding or tuning an SH carburettor, check the condition and specification of the atomiser as part of the overall jetting setup.
Lambretta Carburettor Needles
The carburettor needle works with the atomiser to control fuel delivery as the throttle opens.
A worn needle or incorrect needle specification can affect:
- Throttle response
- Mid-range running
- Fuel mixture
- Engine performance
When tuning a carburettor, the needle should be considered alongside the atomiser and slide rather than as an isolated component.
Lambretta Carburettor Banjo Parts
The carburettor banjo connects the fuel pipe to the carburettor and provides the fuel inlet arrangement.
Scooter Vista stocks replacement Lambretta SH carburettor banjo components, including banjo bolts and associated gaskets.
Scootopia also produces SH carburettor banjo bolts suitable for LI, SX, TV, DL and GP applications.
When servicing the fuel inlet, check the banjo, bolt and sealing washers together.
Lambretta Carburettor Banjo Filters
A banjo filter helps prevent dirt and debris from reaching the carburettor.
Keeping contamination out of the carburettor is particularly important on older fuel systems.
Scooter Vista stocks suitable Lambretta SH carburettor banjo filters for LI, SX, TV, DL and GP applications.
A clean fuel system can help reduce the chance of blocked jets and poor running.
Lambretta Fuel Filters
An additional fuel filter can provide further protection for the carburettor.
Scooter Vista stocks Italian-made OMG Lambretta fuel filters suitable for Series 1, Series 2, Series 3 and DL/GP models.
When fitting an inline fuel filter, make sure the fuel pipe routing remains correct and that the filter does not restrict fuel flow.
Lambretta Carburettor Clamps
The carburettor clamp secures the carburettor to the inlet manifold.
A secure connection is important because the carburettor is exposed to engine vibration.
Scootopia produces a zinc-plated carburettor clamp suitable for SH1/18 and SH1/20 Dell'Orto and Scootopia carburettors.
Check the clamp whenever the carburettor is removed.
Lambretta Carburettor Sleeves
The carburettor sleeve helps correctly locate the carburettor within the clamp and manifold arrangement.
Replacement plastic sleeves are available for SH1/18 and SH1/20 applications.
If the original sleeve is cracked, damaged or missing, replace it rather than relying on an incorrectly fitted carburettor.
Lambretta Carburettor Top Covers & Bolts
The carburettor top secures the slide, throttle cable and associated components within the carburettor body.
Scooter Vista stocks replacement Lambretta SH carburettor top bolts and hardware.
Scootopia supplies replacement top bolt sets for suitable SH carburettors.
When servicing the top of the carburettor, check that the throttle slide moves freely and returns correctly when the throttle is released.
Lambretta Carburettor Float Bowl Parts
The float bowl provides the fuel reservoir used by the carburettor.
Components can include:
- Float bowl
- Float
- Float bowl gasket
- Needle valve
- Jet plug
- Sealing washers
A leaking float bowl can result in fuel leakage and poor running.
During a carburettor rebuild, inspect the float bowl gasket and sealing surfaces carefully.
Lambretta Carburettor Float & Needle Valve
The float and needle valve control the fuel level inside the carburettor.
If the float or needle valve is damaged or sticking, the carburettor may:
- Flood
- Leak fuel
- Run excessively rich
- Struggle to maintain the correct fuel level
If a carburettor is flooding, inspect the float and needle valve before assuming the jetting is incorrect.
Lambretta Carburettor Gaskets
Carburettor gaskets provide sealing between the various components of the carburettor and inlet system.
Scootopia's Lambretta multi-gasket set includes several SH carburettor gaskets, including float bowl, banjo and jet plug sealing components.
Whenever a carburettor is dismantled, inspect the existing gaskets and replace damaged or hardened components.
Lambretta Inlet Manifolds
The inlet manifold connects the carburettor to the engine.
The manifold needs to match the carburettor size and the particular Lambretta engine application.
Scooter Vista stocks suitable Lambretta inlet manifolds and carburettor-related components.
If changing from one carburettor size to another, always check that the manifold is suitable.
For example, the Scootopia SH1/20 replacement carburettor recommends using a 20mm manifold.
Lambretta Inlet Manifold Gaskets
A good seal between the carburettor manifold and engine is essential.
An inlet leak can allow additional air into the engine and affect the fuel mixture.
Potential symptoms include:
- High or unstable idle
- Poor throttle response
- Difficult tuning
- Lean running
- Air leaks
When removing the manifold, inspect the gasket and replace it if necessary.
Lambretta Air Filters & Carburettor Intake Parts
The air filter helps prevent dirt and debris entering the engine through the carburettor.
Scooter Vista stocks various Lambretta air filters, air filter components and intake parts for LI, SX, TV, DL and GP applications.
The air filter and intake system should be considered part of the carburettor setup because changing the amount of air entering the engine can affect the required jetting.
Lambretta Airbox & Air Hose Parts
The airbox and hose arrangement directs filtered air towards the carburettor.
When servicing an older Lambretta, check:
- Air hose condition
- Airbox connections
- Clamps
- Air filter
- Seals
- Intake components
Cracked or poorly sealed intake components can allow unfiltered air into the carburettor.
Lambretta Choke Parts
The choke system provides the additional fuel required when starting a cold engine.
Scooter Vista stocks suitable Lambretta choke components, including choke guides and related parts.
If the choke cable does not operate correctly, check the cable routing, choke lever, guide and carburettor mechanism.
Lambretta Throttle Cable & Carburettor Parts
The throttle cable connects the handlebar throttle to the carburettor slide.
Scootopia supplies standard Lambretta throttle inner cables with brass nipples for Series 1, Series 2, Series 3 and DL/GP models.
When fitting a new carburettor, check that:
- The cable is correctly routed.
- The inner cable is the correct length.
- The nipple is correctly fitted.
- The slide opens fully.
- The slide returns completely when the throttle is released.
Lambretta Carburettor Servicing
Regular carburettor servicing can help prevent running problems.
A basic service should include:
- Remove the carburettor.
- Drain any remaining fuel.
- Remove the float bowl.
- Remove and inspect the jets.
- Inspect the slide.
- Check the float and needle valve.
- Inspect the banjo and fuel inlet.
- Replace worn gaskets and seals.
- Clean the carburettor thoroughly.
- Check the manifold and carburettor clamp.
- Reassemble carefully.
- Refit and check the throttle and choke operation.
- Start the engine and check for leaks.
- Check and adjust the carburettor settings.
Avoid using methods that can damage the precision holes in jets or carburettor passages.
Common Lambretta Carburettor Problems
A poorly running Lambretta can have many possible causes, but common carburettor-related problems include:
Difficult starting
Check the choke circuit, pilot jet, fuel supply and carburettor settings.
Poor idle
Inspect the pilot circuit, mixture setting, slide and possible air leaks.
Engine hesitation
Check the jetting, atomiser, needle, slide and fuel supply.
Carburettor flooding
Inspect the float, needle valve and fuel level.
Fuel leaking
Check gaskets, banjo components, float bowl and fuel pipe connections.
Poor throttle return
Check the throttle cable, slide, spring and carburettor top.
Lack of power
Check the complete fuel system, including jetting, filter, fuel tap, carburettor and air intake.
Lambretta Carburettor Tuning
Carburettor tuning should be carried out with the engine specification in mind.
A carburettor setup that works perfectly on a standard 150cc engine may not be suitable for a tuned 200cc engine.
Consider:
- Cylinder capacity
- Carburettor size
- Main jet
- Pilot jet
- Atomiser
- Needle
- Slide
- Exhaust
- Air filter
- Ignition
- Gearing
- Fuel
Make changes methodically and avoid changing multiple components at once if you are trying to diagnose a running problem.
Lambretta Carburettor Parts for Engine Rebuilds
If you're rebuilding a Lambretta engine, the carburettor should not be overlooked.
An engine rebuild is an ideal time to inspect:
- Carburettor body
- Slide
- Jets
- Atomiser
- Needle
- Float
- Needle valve
- Banjo
- Fuel filter
- Gaskets
- O-rings
- Manifold
- Carburettor clamp
- Air filter
- Throttle cable
- Choke cable
Replacing worn small components can prevent frustrating running problems after the engine has been rebuilt.
Standard or Performance Lambretta Carburettor?
The correct carburettor depends on the engine.
A standard restoration may benefit from retaining the original carburettor specification or using a quality replacement.
A performance engine may require a larger carburettor and completely different jetting.
If upgrading the carburettor, remember that the manifold, air filter, throttle cable and fuel supply may also need to be considered.
Choosing the Correct Lambretta Carburettor Part
Before ordering, check:
Lambretta model
Series 1, 2 or 3
LI, SX, TV, DL or GP
Engine capacity
Carburettor make
Carburettor size
SH1/18, SH1/20 or SH1/22 specification
Jet number
Slide number
Standard or performance engine
Manifold size
This is particularly important with carburettor internals because apparently similar components can have different specifications.
Genuine & Specialist Lambretta Carburettor Parts
At Scooter Vista, we stock a mixture of quality replacement, restoration and performance carburettor components for classic Lambretta LI, SX, TV, DL and GP models.
Our range covers everything from individual jets, slides, gaskets and banjo components to complete replacement SH carburettors and refurbishment kits.
Where applicable, individual product descriptions provide information about:
- Model compatibility
- Carburettor size
- Manufacturer
- Component number
- Original part number
- Ethanol resistance
- Intended application
This makes it easier to select the correct carburettor component for your Lambretta.
Need Help Finding the Correct Lambretta Carburettor Part?
Lambretta carburettors can vary considerably depending on the model, engine and previous modifications.
Before ordering, check your:
- Lambretta model
- Series
- Engine size
- Carburettor type
- Carburettor size
- Existing jet or slide number
- Manifold size
- Engine specification
If you're unsure which Lambretta carburettor, jet, slide, gasket, banjo, filter, manifold or refurbishment part you need, check the individual product description or contact Scooter Vista for assistance.
Scooter Vista – Lambretta & Vespa Parts Specialists
Scooter Vista specialises in classic Lambretta and Vespa parts, supplying components for restoration, servicing, engine rebuilding and performance upgrades.
From a replacement SH carburettor jet or gasket to a complete carburettor refurbishment kit or replacement SH1/20 carburettor, our range of Lambretta Fuel & Exhaust (Carb) Parts for LI, SX, TV, DL & GP is designed to help keep your classic Lambretta's fuel system working correctly.
Browse the products below to find the correct Lambretta carburettor, jets, slides, atomisers, needles, banjo parts, filters, manifolds, gaskets, clamps, sleeves and refurbishment components for your scooter.
